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99c048ef 1/** @file\r
2DnsDxe support functions implementation.\r
f75a7f56
LG
3\r
4Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>\r
ecf98fbc 5SPDX-License-Identifier: BSD-2-Clause-Patent\r
99c048ef 6\r
7**/\r
8\r
9#ifndef __EFI_DNS_IMPL_H_\r
10#define __EFI_DNS_IMPL_H_\r
11\r
12#include <Uefi.h>\r
13\r
14//\r
15// Libraries classes\r
16//\r
17#include <Library/BaseLib.h>\r
18#include <Library/UefiLib.h>\r
19#include <Library/UefiBootServicesTableLib.h>\r
20#include <Library/UefiDriverEntryPoint.h>\r
21#include <Library/UefiRuntimeServicesTableLib.h>\r
22#include <Library/BaseMemoryLib.h>\r
23#include <Library/MemoryAllocationLib.h>\r
24#include <Library/NetLib.h>\r
25#include <Library/DebugLib.h>\r
26#include <Library/DpcLib.h>\r
27#include <Library/PrintLib.h>\r
28#include <Library/UdpIoLib.h>\r
29\r
30//\r
31// UEFI Driver Model Protocols\r
32//\r
33#include <Protocol/DriverBinding.h>\r
34#include <Protocol/ComponentName2.h>\r
35#include <Protocol/ComponentName.h>\r
36\r
37#include <Protocol/Udp4.h>\r
38#include <Protocol/Dhcp4.h>\r
39#include <Protocol/Dns4.h>\r
40\r
41#include <Protocol/Udp6.h>\r
42#include <Protocol/Dhcp6.h>\r
43#include <Protocol/Dns6.h>\r
44\r
45#include <Protocol/Ip4Config2.h>\r
46\r
47#include "DnsDriver.h"\r
48#include "DnsDhcp.h"\r
49\r
50//\r
51// Driver Version\r
52//\r
53#define DNS_VERSION 0x00000000\r
54\r
55//\r
56// Protocol instances\r
57//\r
58extern EFI_COMPONENT_NAME_PROTOCOL gDnsComponentName;\r
59extern EFI_COMPONENT_NAME2_PROTOCOL gDnsComponentName2;\r
60extern EFI_UNICODE_STRING_TABLE *gDnsControllerNameTable;\r
61\r
62extern EFI_DRIVER_BINDING_PROTOCOL gDns4DriverBinding;\r
63extern EFI_SERVICE_BINDING_PROTOCOL mDns4ServiceBinding;\r
64extern EFI_DNS4_PROTOCOL mDns4Protocol;\r
65\r
66extern EFI_DRIVER_BINDING_PROTOCOL gDns6DriverBinding;\r
67extern EFI_SERVICE_BINDING_PROTOCOL mDns6ServiceBinding;\r
68extern EFI_DNS6_PROTOCOL mDns6Protocol;\r
69\r
70//\r
71// DNS related\r
72//\r
73#define DNS_SERVER_PORT 53\r
74\r
75#define DNS_PROTOCOL_UDP EFI_IP_PROTO_UDP\r
76#define DNS_PROTOCOL_TCP EFI_IP_PROTO_TCP\r
77\r
78#define DNS_STATE_UNCONFIGED 0\r
79#define DNS_STATE_CONFIGED 1\r
80#define DNS_STATE_DESTROY 2\r
81\r
82#define DNS_DEFAULT_TIMEOUT 2\r
99c048ef 83\r
84#define DNS_TIME_TO_GETMAP 5\r
85\r
86#pragma pack(1)\r
87\r
88typedef union _DNS_FLAGS DNS_FLAGS;\r
89\r
90typedef struct {\r
91 LIST_ENTRY AllCacheLink;\r
f75a7f56 92 EFI_DNS4_CACHE_ENTRY DnsCache;\r
99c048ef 93} DNS4_CACHE;\r
94\r
95typedef struct {\r
96 LIST_ENTRY AllCacheLink;\r
f75a7f56 97 EFI_DNS6_CACHE_ENTRY DnsCache;\r
99c048ef 98} DNS6_CACHE;\r
99\r
100typedef struct {\r
101 LIST_ENTRY AllServerLink;\r
f75a7f56 102 EFI_IPv4_ADDRESS Dns4ServerIp;\r
99c048ef 103} DNS4_SERVER_IP;\r
104\r
105typedef struct {\r
106 LIST_ENTRY AllServerLink;\r
f75a7f56 107 EFI_IPv6_ADDRESS Dns6ServerIp;\r
99c048ef 108} DNS6_SERVER_IP;\r
109\r
110typedef struct {\r
cd2a6240 111 UINT32 RetryCounting;\r
99c048ef 112 UINT32 PacketToLive;\r
113 CHAR16 *QueryHostName;\r
114 EFI_IPv4_ADDRESS QueryIpAddress;\r
fcae1a99 115 BOOLEAN GeneralLookUp;\r
99c048ef 116 EFI_DNS4_COMPLETION_TOKEN *Token;\r
117} DNS4_TOKEN_ENTRY;\r
118\r
119typedef struct {\r
cd2a6240 120 UINT32 RetryCounting;\r
99c048ef 121 UINT32 PacketToLive;\r
122 CHAR16 *QueryHostName;\r
123 EFI_IPv6_ADDRESS QueryIpAddress;\r
fcae1a99 124 BOOLEAN GeneralLookUp;\r
99c048ef 125 EFI_DNS6_COMPLETION_TOKEN *Token;\r
126} DNS6_TOKEN_ENTRY;\r
127\r
128union _DNS_FLAGS{\r
129 struct {\r
130 UINT16 RCode:4;\r
131 UINT16 Zero:3;\r
132 UINT16 RA:1;\r
133 UINT16 RD:1;\r
134 UINT16 TC:1;\r
135 UINT16 AA:1;\r
136 UINT16 OpCode:4;\r
137 UINT16 QR:1;\r
138 } Bits;\r
139 UINT16 Uint16;\r
140};\r
141\r
142#define DNS_FLAGS_QR_QUERY 0\r
143#define DNS_FLAGS_QR_RESPONSE 1\r
144\r
145#define DNS_FLAGS_OPCODE_STANDARD 0\r
146#define DNS_FLAGS_OPCODE_INVERSE 1\r
147#define DNS_FLAGS_OPCODE_SERVER_STATE 2\r
148\r
149#define DNS_FLAGS_RCODE_NO_ERROR 0\r
150#define DNS_FLAGS_RCODE_NAME_ERROR 3\r
151\r
152typedef struct {\r
153 UINT16 Identification;\r
154 DNS_FLAGS Flags;\r
155 UINT16 QuestionsNum;\r
156 UINT16 AnswersNum;\r
157 UINT16 AuthorityNum;\r
158 UINT16 AditionalNum;\r
159} DNS_HEADER;\r
160\r
161typedef struct {\r
162 UINT16 Type;\r
163 UINT16 Class;\r
164} DNS_QUERY_SECTION;\r
165\r
166typedef struct {\r
167 UINT16 Type;\r
168 UINT16 Class;\r
169 UINT32 Ttl;\r
170 UINT16 DataLength;\r
171} DNS_ANSWER_SECTION;\r
172\r
99c048ef 173#define DNS4_DOMAIN L"in-addr.arpa"\r
174#define DNS6_DOMAIN L"IP6.ARPA"\r
175\r
176\r
177#pragma pack()\r
178\r
179/**\r
180 Remove TokenEntry from TokenMap.\r
181\r
182 @param[in] TokenMap All DNSv4 Token entrys.\r
183 @param[in] TokenEntry TokenEntry need to be removed.\r
184\r
81a46615 185 @retval EFI_SUCCESS Remove TokenEntry from TokenMap successfully.\r
99c048ef 186 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
187\r
188**/\r
189EFI_STATUS\r
190Dns4RemoveTokenEntry (\r
191 IN NET_MAP *TokenMap,\r
192 IN DNS4_TOKEN_ENTRY *TokenEntry\r
193 );\r
194\r
195/**\r
196 Remove TokenEntry from TokenMap.\r
197\r
198 @param[in] TokenMap All DNSv6 Token entrys.\r
199 @param[in] TokenEntry TokenEntry need to be removed.\r
200\r
81a46615 201 @retval EFI_SUCCESS Remove TokenEntry from TokenMap successfully.\r
99c048ef 202 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
f75a7f56 203\r
99c048ef 204**/\r
205EFI_STATUS\r
206Dns6RemoveTokenEntry (\r
207 IN NET_MAP *TokenMap,\r
208 IN DNS6_TOKEN_ENTRY *TokenEntry\r
209 );\r
210\r
211/**\r
81a46615 212 This function cancel the token specified by Arg in the Map.\r
99c048ef 213\r
214 @param[in] Map Pointer to the NET_MAP.\r
215 @param[in] Item Pointer to the NET_MAP_ITEM.\r
216 @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r
217 the tokens in this Map will be cancelled.\r
218 This parameter is optional and may be NULL.\r
219\r
220 @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r
221 is not the same as that in the Item, if Arg is not\r
222 NULL.\r
223 @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r
224 cancelled.\r
225\r
226**/\r
227EFI_STATUS\r
228EFIAPI\r
229Dns4CancelTokens (\r
230 IN NET_MAP *Map,\r
231 IN NET_MAP_ITEM *Item,\r
232 IN VOID *Arg OPTIONAL\r
233 );\r
234\r
235/**\r
81a46615 236 This function cancel the token specified by Arg in the Map.\r
99c048ef 237\r
238 @param[in] Map Pointer to the NET_MAP.\r
239 @param[in] Item Pointer to the NET_MAP_ITEM.\r
240 @param[in] Arg Pointer to the token to be cancelled. If NULL, all\r
241 the tokens in this Map will be cancelled.\r
242 This parameter is optional and may be NULL.\r
243\r
244 @retval EFI_SUCCESS The token is cancelled if Arg is NULL, or the token\r
245 is not the same as that in the Item, if Arg is not\r
246 NULL.\r
247 @retval EFI_ABORTED Arg is not NULL, and the token specified by Arg is\r
248 cancelled.\r
249\r
250**/\r
251EFI_STATUS\r
252EFIAPI\r
253Dns6CancelTokens (\r
254 IN NET_MAP *Map,\r
255 IN NET_MAP_ITEM *Item,\r
256 IN VOID *Arg OPTIONAL\r
257 );\r
258\r
259/**\r
260 Get the TokenEntry from the TokensMap.\r
261\r
262 @param[in] TokensMap All DNSv4 Token entrys\r
263 @param[in] Token Pointer to the token to be get.\r
264 @param[out] TokenEntry Pointer to TokenEntry corresponding Token.\r
265\r
81a46615 266 @retval EFI_SUCCESS Get the TokenEntry from the TokensMap successfully.\r
99c048ef 267 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
268\r
269**/\r
270EFI_STATUS\r
271EFIAPI\r
272GetDns4TokenEntry (\r
273 IN NET_MAP *TokensMap,\r
f75a7f56 274 IN EFI_DNS4_COMPLETION_TOKEN *Token,\r
99c048ef 275 OUT DNS4_TOKEN_ENTRY **TokenEntry\r
276 );\r
277\r
278/**\r
279 Get the TokenEntry from the TokensMap.\r
280\r
281 @param[in] TokensMap All DNSv6 Token entrys\r
282 @param[in] Token Pointer to the token to be get.\r
283 @param[out] TokenEntry Pointer to TokenEntry corresponding Token.\r
284\r
81a46615 285 @retval EFI_SUCCESS Get the TokenEntry from the TokensMap successfully.\r
99c048ef 286 @retval EFI_NOT_FOUND TokenEntry is not found in TokenMap.\r
287\r
288**/\r
289EFI_STATUS\r
290EFIAPI\r
291GetDns6TokenEntry (\r
292 IN NET_MAP *TokensMap,\r
f75a7f56 293 IN EFI_DNS6_COMPLETION_TOKEN *Token,\r
99c048ef 294 OUT DNS6_TOKEN_ENTRY **TokenEntry\r
295 );\r
296\r
297/**\r
298 Cancel DNS4 tokens from the DNS4 instance.\r
299\r
300 @param[in] Instance Pointer to the DNS instance context data.\r
301 @param[in] Token Pointer to the token to be canceled. If NULL, all\r
302 tokens in this instance will be cancelled.\r
303 This parameter is optional and may be NULL.\r
304\r
305 @retval EFI_SUCCESS The Token is cancelled.\r
306 @retval EFI_NOT_FOUND The Token is not found.\r
307\r
308**/\r
309EFI_STATUS\r
310Dns4InstanceCancelToken (\r
311 IN DNS_INSTANCE *Instance,\r
312 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
313 );\r
314\r
315/**\r
316 Cancel DNS6 tokens from the DNS6 instance.\r
317\r
318 @param[in] Instance Pointer to the DNS instance context data.\r
319 @param[in] Token Pointer to the token to be canceled. If NULL, all\r
320 tokens in this instance will be cancelled.\r
321 This parameter is optional and may be NULL.\r
322\r
323 @retval EFI_SUCCESS The Token is cancelled.\r
324 @retval EFI_NOT_FOUND The Token is not found.\r
325\r
326**/\r
327EFI_STATUS\r
328Dns6InstanceCancelToken (\r
329 IN DNS_INSTANCE *Instance,\r
330 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
331 );\r
332\r
333/**\r
334 Free the resource related to the configure parameters.\r
335\r
336 @param Config The DNS configure data\r
337\r
338**/\r
339VOID\r
340Dns4CleanConfigure (\r
341 IN OUT EFI_DNS4_CONFIG_DATA *Config\r
342 );\r
343\r
344/**\r
345 Free the resource related to the configure parameters.\r
346\r
347 @param Config The DNS configure data\r
348\r
349**/\r
350VOID\r
351Dns6CleanConfigure (\r
352 IN OUT EFI_DNS6_CONFIG_DATA *Config\r
353 );\r
354\r
355/**\r
356 Allocate memory for configure parameter such as timeout value for Dst,\r
357 then copy the configure parameter from Src to Dst.\r
358\r
359 @param[out] Dst The destination DHCP configure data.\r
360 @param[in] Src The source DHCP configure data.\r
361\r
362 @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
363 @retval EFI_SUCCESS The configure is copied.\r
364\r
365**/\r
366EFI_STATUS\r
367Dns4CopyConfigure (\r
368 OUT EFI_DNS4_CONFIG_DATA *Dst,\r
369 IN EFI_DNS4_CONFIG_DATA *Src\r
370 );\r
371\r
372/**\r
373 Allocate memory for configure parameter such as timeout value for Dst,\r
374 then copy the configure parameter from Src to Dst.\r
375\r
376 @param[out] Dst The destination DHCP configure data.\r
377 @param[in] Src The source DHCP configure data.\r
378\r
379 @retval EFI_OUT_OF_RESOURCES Failed to allocate memory.\r
380 @retval EFI_SUCCESS The configure is copied.\r
381\r
382**/\r
383EFI_STATUS\r
384Dns6CopyConfigure (\r
385 OUT EFI_DNS6_CONFIG_DATA *Dst,\r
386 IN EFI_DNS6_CONFIG_DATA *Src\r
387 );\r
388\r
389/**\r
390 Callback of Dns packet. Does nothing.\r
391\r
392 @param Arg The context.\r
393\r
394**/\r
395VOID\r
396EFIAPI\r
397DnsDummyExtFree (\r
398 IN VOID *Arg\r
399 );\r
400\r
401/**\r
402 Poll the UDP to get the IP4 default address, which may be retrieved\r
f75a7f56
LG
403 by DHCP.\r
404\r
405 The default time out value is 5 seconds. If IP has retrieved the default address,\r
99c048ef 406 the UDP is reconfigured.\r
407\r
408 @param Instance The DNS instance\r
409 @param UdpIo The UDP_IO to poll\r
410 @param UdpCfgData The UDP configure data to reconfigure the UDP_IO\r
411\r
412 @retval TRUE The default address is retrieved and UDP is reconfigured.\r
81a46615 413 @retval FALSE Some error occurred.\r
99c048ef 414\r
415**/\r
416BOOLEAN\r
417Dns4GetMapping (\r
418 IN DNS_INSTANCE *Instance,\r
419 IN UDP_IO *UdpIo,\r
420 IN EFI_UDP4_CONFIG_DATA *UdpCfgData\r
421 );\r
422\r
423/**\r
424 Configure the opened Udp6 instance until the corresponding Ip6 instance\r
425 has been configured.\r
426\r
427 @param Instance The DNS instance\r
428 @param UdpIo The UDP_IO to poll\r
429 @param UdpCfgData The UDP configure data to reconfigure the UDP_IO\r
430\r
431 @retval TRUE Configure the Udp6 instance successfully.\r
81a46615 432 @retval FALSE Some error occurred.\r
99c048ef 433\r
434**/\r
435BOOLEAN\r
436Dns6GetMapping (\r
437 IN DNS_INSTANCE *Instance,\r
438 IN UDP_IO *UdpIo,\r
439 IN EFI_UDP6_CONFIG_DATA *UdpCfgData\r
440 );\r
441\r
442/**\r
443 Configure the UDP.\r
f75a7f56 444\r
99c048ef 445 @param Instance The DNS session\r
446 @param UdpIo The UDP_IO instance\r
f75a7f56 447\r
99c048ef 448 @retval EFI_SUCCESS The UDP is successfully configured for the\r
449 session.\r
450\r
451**/\r
452EFI_STATUS\r
453Dns4ConfigUdp (\r
454 IN DNS_INSTANCE *Instance,\r
455 IN UDP_IO *UdpIo\r
456 );\r
457\r
458/**\r
459 Configure the UDP.\r
f75a7f56 460\r
99c048ef 461 @param Instance The DNS session\r
462 @param UdpIo The UDP_IO instance\r
463\r
464 @retval EFI_SUCCESS The UDP is successfully configured for the\r
465 session.\r
466\r
467**/\r
468EFI_STATUS\r
469Dns6ConfigUdp (\r
470 IN DNS_INSTANCE *Instance,\r
471 IN UDP_IO *UdpIo\r
472 );\r
473\r
474/**\r
475 Update Dns4 cache to shared list of caches of all DNSv4 instances.\r
f75a7f56 476\r
99c048ef 477 @param Dns4CacheList All Dns4 cache list.\r
f75a7f56
LG
478 @param DeleteFlag If FALSE, this function is to add one entry to the DNS Cache.\r
479 If TRUE, this function will delete matching DNS Cache entry.\r
480 @param Override If TRUE, the matching DNS cache entry will be overwritten with the supplied parameter.\r
99c048ef 481 If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already exists.\r
482 @param DnsCacheEntry Entry Pointer to DNS Cache entry.\r
483\r
484 @retval EFI_SUCCESS Update Dns4 cache successfully.\r
f75a7f56
LG
485 @retval Others Failed to update Dns4 cache.\r
486\r
99c048ef 487**/\r
488EFI_STATUS\r
489EFIAPI\r
490UpdateDns4Cache (\r
491 IN LIST_ENTRY *Dns4CacheList,\r
492 IN BOOLEAN DeleteFlag,\r
493 IN BOOLEAN Override,\r
494 IN EFI_DNS4_CACHE_ENTRY DnsCacheEntry\r
495 );\r
496\r
497/**\r
f75a7f56 498 Update Dns6 cache to shared list of caches of all DNSv6 instances.\r
99c048ef 499\r
500 @param Dns6CacheList All Dns6 cache list.\r
f75a7f56
LG
501 @param DeleteFlag If FALSE, this function is to add one entry to the DNS Cache.\r
502 If TRUE, this function will delete matching DNS Cache entry.\r
503 @param Override If TRUE, the matching DNS cache entry will be overwritten with the supplied parameter.\r
99c048ef 504 If FALSE, EFI_ACCESS_DENIED will be returned if the entry to be added is already exists.\r
505 @param DnsCacheEntry Entry Pointer to DNS Cache entry.\r
f75a7f56 506\r
99c048ef 507 @retval EFI_SUCCESS Update Dns6 cache successfully.\r
508 @retval Others Failed to update Dns6 cache.\r
f75a7f56 509**/\r
99c048ef 510EFI_STATUS\r
511EFIAPI\r
512UpdateDns6Cache (\r
513 IN LIST_ENTRY *Dns6CacheList,\r
514 IN BOOLEAN DeleteFlag,\r
515 IN BOOLEAN Override,\r
516 IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry\r
517 );\r
518\r
519/**\r
f75a7f56 520 Add Dns4 ServerIp to common list of addresses of all configured DNSv4 server.\r
99c048ef 521\r
f75a7f56
LG
522 @param Dns4ServerList Common list of addresses of all configured DNSv4 server.\r
523 @param ServerIp DNS server Ip.\r
99c048ef 524\r
525 @retval EFI_SUCCESS Add Dns4 ServerIp to common list successfully.\r
526 @retval Others Failed to add Dns4 ServerIp to common list.\r
f75a7f56 527\r
99c048ef 528**/\r
529EFI_STATUS\r
530EFIAPI\r
531AddDns4ServerIp (\r
532 IN LIST_ENTRY *Dns4ServerList,\r
533 IN EFI_IPv4_ADDRESS ServerIp\r
534 );\r
535\r
536/**\r
f75a7f56 537 Add Dns6 ServerIp to common list of addresses of all configured DNSv6 server.\r
99c048ef 538\r
f75a7f56
LG
539 @param Dns6ServerList Common list of addresses of all configured DNSv6 server.\r
540 @param ServerIp DNS server Ip.\r
99c048ef 541\r
542 @retval EFI_SUCCESS Add Dns6 ServerIp to common list successfully.\r
543 @retval Others Failed to add Dns6 ServerIp to common list.\r
f75a7f56
LG
544\r
545**/\r
99c048ef 546EFI_STATUS\r
547EFIAPI\r
548AddDns6ServerIp (\r
549 IN LIST_ENTRY *Dns6ServerList,\r
550 IN EFI_IPv6_ADDRESS ServerIp\r
551 );\r
552\r
553/**\r
554 Find out whether the response is valid or invalid.\r
555\r
f75a7f56
LG
556 @param TokensMap All DNS transmittal Tokens entry.\r
557 @param Identification Identification for queried packet.\r
99c048ef 558 @param Type Type for queried packet.\r
3900a743 559 @param Class Class for queried packet.\r
99c048ef 560 @param Item Return corresponding Token entry.\r
561\r
562 @retval TRUE The response is valid.\r
563 @retval FALSE The response is invalid.\r
f75a7f56
LG
564\r
565**/\r
99c048ef 566BOOLEAN\r
567IsValidDnsResponse (\r
568 IN NET_MAP *TokensMap,\r
569 IN UINT16 Identification,\r
570 IN UINT16 Type,\r
3900a743 571 IN UINT16 Class,\r
99c048ef 572 OUT NET_MAP_ITEM **Item\r
573 );\r
574\r
575/**\r
576 Parse Dns Response.\r
577\r
578 @param Instance The DNS instance\r
579 @param RxString Received buffer.\r
84110bbe 580 @param Length Received buffer length.\r
f75a7f56
LG
581 @param Completed Flag to indicate that Dns response is valid.\r
582\r
99c048ef 583 @retval EFI_SUCCESS Parse Dns Response successfully.\r
584 @retval Others Failed to parse Dns Response.\r
f75a7f56
LG
585\r
586**/\r
99c048ef 587EFI_STATUS\r
588ParseDnsResponse (\r
589 IN OUT DNS_INSTANCE *Instance,\r
590 IN UINT8 *RxString,\r
84110bbe 591 IN UINT32 Length,\r
99c048ef 592 OUT BOOLEAN *Completed\r
593 );\r
594\r
595/**\r
596 Parse response packet.\r
597\r
598 @param Packet The packets received.\r
599 @param EndPoint The local/remote UDP access point\r
600 @param IoStatus The status of the UDP receive\r
601 @param Context The opaque parameter to the function.\r
602\r
f75a7f56 603**/\r
99c048ef 604VOID\r
605EFIAPI\r
606DnsOnPacketReceived (\r
607 NET_BUF *Packet,\r
608 UDP_END_POINT *EndPoint,\r
609 EFI_STATUS IoStatus,\r
610 VOID *Context\r
611 );\r
612\r
613/**\r
614 Release the net buffer when packet is sent.\r
615\r
616 @param Packet The packets received.\r
617 @param EndPoint The local/remote UDP access point\r
618 @param IoStatus The status of the UDP receive\r
619 @param Context The opaque parameter to the function.\r
620\r
621**/\r
622VOID\r
623EFIAPI\r
624DnsOnPacketSent (\r
625 NET_BUF *Packet,\r
626 UDP_END_POINT *EndPoint,\r
627 EFI_STATUS IoStatus,\r
628 VOID *Context\r
629 );\r
630\r
631/**\r
632 Query request information.\r
633\r
634 @param Instance The DNS instance\r
635 @param Packet The packet for querying request information.\r
636\r
637 @retval EFI_SUCCESS Query request information successfully.\r
638 @retval Others Failed to query request information.\r
639\r
640**/\r
641EFI_STATUS\r
642DoDnsQuery (\r
643 IN DNS_INSTANCE *Instance,\r
644 IN NET_BUF *Packet\r
645 );\r
646\r
647/**\r
fcae1a99 648 Construct the Packet according query section.\r
99c048ef 649\r
650 @param Instance The DNS instance\r
f75a7f56
LG
651 @param QueryName Queried Name\r
652 @param Type Queried Type\r
653 @param Class Queried Class\r
fcae1a99 654 @param Packet The packet for query\r
99c048ef 655\r
656 @retval EFI_SUCCESS The packet is constructed.\r
657 @retval Others Failed to construct the Packet.\r
658\r
659**/\r
660EFI_STATUS\r
fcae1a99 661ConstructDNSQuery (\r
99c048ef 662 IN DNS_INSTANCE *Instance,\r
fcae1a99 663 IN CHAR8 *QueryName,\r
99c048ef 664 IN UINT16 Type,\r
fcae1a99 665 IN UINT16 Class,\r
99c048ef 666 OUT NET_BUF **Packet\r
667 );\r
668\r
669/**\r
670 Retransmit the packet.\r
671\r
672 @param Instance The DNS instance\r
f75a7f56 673 @param Packet Retransmit the packet\r
99c048ef 674\r
675 @retval EFI_SUCCESS The packet is retransmitted.\r
676 @retval Others Failed to retransmit.\r
677\r
678**/\r
679EFI_STATUS\r
680DnsRetransmit (\r
681 IN DNS_INSTANCE *Instance,\r
682 IN NET_BUF *Packet\r
683 );\r
684\r
685/**\r
686 The timer ticking function for the DNS service.\r
687\r
688 @param Event The ticking event\r
689 @param Context The DNS service instance\r
690\r
691**/\r
692VOID\r
693EFIAPI\r
694DnsOnTimerRetransmit (\r
695 IN EFI_EVENT Event,\r
696 IN VOID *Context\r
697 );\r
698\r
699/**\r
700 The timer ticking function for the DNS driver.\r
701\r
702 @param Event The ticking event\r
703 @param Context NULL\r
704\r
705**/\r
706VOID\r
707EFIAPI\r
708DnsOnTimerUpdate (\r
709 IN EFI_EVENT Event,\r
710 IN VOID *Context\r
711 );\r
712\r
713\r
714/**\r
0f4e123f 715 Retrieve mode data of this DNS instance.\r
99c048ef 716\r
0f4e123f 717 This function is used to retrieve DNS mode data for this DNS instance.\r
99c048ef 718\r
0f4e123f
JW
719 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
720 @param[out] DnsModeData Point to the mode data.\r
99c048ef 721\r
0f4e123f
JW
722 @retval EFI_SUCCESS The operation completed successfully.\r
723 @retval EFI_NOT_STARTED When DnsConfigData is queried, no configuration data\r
724 is available because this instance has not been\r
725 configured.\r
726 @retval EFI_INVALID_PARAMETER This is NULL or DnsModeData is NULL.\r
727 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 728**/\r
729EFI_STATUS\r
730EFIAPI\r
731Dns4GetModeData (\r
732 IN EFI_DNS4_PROTOCOL *This,\r
733 OUT EFI_DNS4_MODE_DATA *DnsModeData\r
734 );\r
735\r
736/**\r
0f4e123f
JW
737 Configure this DNS instance.\r
738\r
739 This function is used to configure DNS mode data for this DNS instance.\r
740\r
741 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
742 @param[in] DnsConfigData Point to the Configuration data.\r
743\r
744 @retval EFI_SUCCESS The operation completed successfully.\r
745 @retval EFI_UNSUPPORTED The designated protocol is not supported.\r
81a46615 746 @retval EFI_INVALID_PARAMETER This is NULL.\r
f75a7f56 747 The StationIp address provided in DnsConfigData is not a\r
0f4e123f
JW
748 valid unicast.\r
749 DnsServerList is NULL while DnsServerListCount\r
750 is not ZERO.\r
751 DnsServerListCount is ZERO while DnsServerList\r
752 is not NULL\r
753 @retval EFI_OUT_OF_RESOURCES The DNS instance data or required space could not be\r
754 allocated.\r
755 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The\r
756 EFI DNSv4 Protocol instance is not configured.\r
f75a7f56
LG
757 @retval EFI_ALREADY_STARTED Second call to Configure() with DnsConfigData. To\r
758 reconfigure the instance the caller must call Configure()\r
0f4e123f 759 with NULL first to return driver to unconfigured state.\r
99c048ef 760**/\r
761EFI_STATUS\r
762EFIAPI\r
763Dns4Configure (\r
764 IN EFI_DNS4_PROTOCOL *This,\r
765 IN EFI_DNS4_CONFIG_DATA *DnsConfigData\r
766 );\r
767\r
768/**\r
0f4e123f
JW
769 Host name to host address translation.\r
770\r
771 The HostNameToIp () function is used to translate the host name to host IP address. A\r
772 type A query is used to get the one or more IP addresses for this host.\r
773\r
774 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
775 @param[in] HostName Host name.\r
776 @param[in] Token Point to the completion token to translate host name\r
777 to host address.\r
778\r
779 @retval EFI_SUCCESS The operation completed successfully.\r
780 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
781 This is NULL.\r
782 Token is NULL.\r
783 Token.Event is NULL.\r
784 HostName is NULL. HostName string is unsupported format.\r
785 @retval EFI_NO_MAPPING There's no source address is available for use.\r
786 @retval EFI_NOT_STARTED This instance has not been started.\r
99c048ef 787**/\r
788EFI_STATUS\r
789EFIAPI\r
790Dns4HostNameToIp (\r
791 IN EFI_DNS4_PROTOCOL *This,\r
792 IN CHAR16 *HostName,\r
793 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
794 );\r
795\r
796/**\r
0f4e123f
JW
797 IPv4 address to host name translation also known as Reverse DNS lookup.\r
798\r
f75a7f56 799 The IpToHostName() function is used to translate the host address to host name. A type PTR\r
0f4e123f
JW
800 query is used to get the primary name of the host. Support of this function is optional.\r
801\r
802 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
803 @param[in] IpAddress Ip Address.\r
804 @param[in] Token Point to the completion token to translate host\r
805 address to host name.\r
806\r
807 @retval EFI_SUCCESS The operation completed successfully.\r
808 @retval EFI_UNSUPPORTED This function is not supported.\r
809 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
810 This is NULL.\r
811 Token is NULL.\r
812 Token.Event is NULL.\r
813 IpAddress is not valid IP address .\r
814 @retval EFI_NO_MAPPING There's no source address is available for use.\r
815 @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r
816 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 817**/\r
818EFI_STATUS\r
819EFIAPI\r
820Dns4IpToHostName (\r
821 IN EFI_DNS4_PROTOCOL *This,\r
822 IN EFI_IPv4_ADDRESS IpAddress,\r
823 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
824 );\r
825\r
826/**\r
f75a7f56 827 Retrieve arbitrary information from the DNS server.\r
0f4e123f
JW
828\r
829 This GeneralLookup() function retrieves arbitrary information from the DNS. The caller\r
830 supplies a QNAME, QTYPE, and QCLASS, and all of the matching RRs are returned. All\r
831 RR content (e.g., TTL) was returned. The caller need parse the returned RR to get\r
832 required information. The function is optional.\r
833\r
834 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
835 @param[in] QName Pointer to Query Name.\r
836 @param[in] QType Query Type.\r
837 @param[in] QClass Query Name.\r
838 @param[in] Token Point to the completion token to retrieve arbitrary\r
839 information.\r
840\r
841 @retval EFI_SUCCESS The operation completed successfully.\r
842 @retval EFI_UNSUPPORTED This function is not supported. Or the requested\r
843 QType is not supported\r
844 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
845 This is NULL.\r
846 Token is NULL.\r
847 Token.Event is NULL.\r
848 QName is NULL.\r
849 @retval EFI_NO_MAPPING There's no source address is available for use.\r
850 @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r
851 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 852**/\r
853EFI_STATUS\r
854EFIAPI\r
855Dns4GeneralLookUp (\r
856 IN EFI_DNS4_PROTOCOL *This,\r
857 IN CHAR8 *QName,\r
f75a7f56 858 IN UINT16 QType,\r
99c048ef 859 IN UINT16 QClass,\r
860 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
861 );\r
862\r
863/**\r
0f4e123f
JW
864 This function is to update the DNS Cache.\r
865\r
866 The UpdateDnsCache() function is used to add/delete/modify DNS cache entry. DNS cache\r
867 can be normally dynamically updated after the DNS resolve succeeds. This function\r
868 provided capability to manually add/delete/modify the DNS cache.\r
869\r
870 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
871 @param[in] DeleteFlag If FALSE, this function is to add one entry to the\r
81a46615 872 DNS Cache. If TRUE, this function will delete\r
0f4e123f 873 matching DNS Cache entry.\r
81a46615 874 @param[in] Override If TRUE, the matching DNS cache entry will be\r
0f4e123f
JW
875 overwritten with the supplied parameter. If FALSE,\r
876 EFI_ACCESS_DENIED will be returned if the entry to\r
877 be added is already existed.\r
878 @param[in] DnsCacheEntry Pointer to DNS Cache entry.\r
879\r
880 @retval EFI_SUCCESS The operation completed successfully.\r
881 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
882 This is NULL.\r
883 DnsCacheEntry.HostName is NULL.\r
884 DnsCacheEntry.IpAddress is NULL.\r
885 DnsCacheEntry.Timeout is zero.\r
886 @retval EFI_ACCESS_DENIED The DNS cache entry already exists and Override is\r
887 not TRUE.\r
99c048ef 888**/\r
889EFI_STATUS\r
890EFIAPI\r
891Dns4UpdateDnsCache (\r
892 IN EFI_DNS4_PROTOCOL *This,\r
893 IN BOOLEAN DeleteFlag,\r
894 IN BOOLEAN Override,\r
895 IN EFI_DNS4_CACHE_ENTRY DnsCacheEntry\r
896 );\r
897\r
898/**\r
0f4e123f
JW
899 Polls for incoming data packets and processes outgoing data packets.\r
900\r
901 The Poll() function can be used by network drivers and applications to increase the\r
902 rate that data packets are moved between the communications device and the transmit\r
903 and receive queues.\r
904 In some systems, the periodic timer event in the managed network driver may not poll\r
905 the underlying communications device fast enough to transmit and/or receive all data\r
906 packets without missing incoming packets or dropping outgoing packets. Drivers and\r
907 applications that are experiencing packet loss should try calling the Poll()\r
908 function more often.\r
909\r
910 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
911\r
912 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
913 @retval EFI_NOT_STARTED This EFI DNS Protocol instance has not been started.\r
914 @retval EFI_INVALID_PARAMETER This is NULL.\r
915 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r
916 @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive\r
917 queue. Consider increasing the polling rate.\r
99c048ef 918**/\r
919EFI_STATUS\r
920EFIAPI\r
921Dns4Poll (\r
922 IN EFI_DNS4_PROTOCOL *This\r
923 );\r
924\r
925/**\r
0f4e123f
JW
926 Abort an asynchronous DNS operation, including translation between IP and Host, and\r
927 general look up behavior.\r
928\r
929 The Cancel() function is used to abort a pending resolution request. After calling\r
930 this function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r
931 signaled. If the token is not in one of the queues, which usually means that the\r
932 asynchronous operation has completed, this function will not signal the token and\r
933 EFI_NOT_FOUND is returned.\r
934\r
935 @param[in] This Pointer to EFI_DNS4_PROTOCOL instance.\r
936 @param[in] Token Pointer to a token that has been issued by\r
937 EFI_DNS4_PROTOCOL.HostNameToIp (),\r
938 EFI_DNS4_PROTOCOL.IpToHostName() or\r
939 EFI_DNS4_PROTOCOL.GeneralLookup().\r
940 If NULL, all pending tokens are aborted.\r
941\r
942 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
943 @retval EFI_NOT_STARTED This EFI DNS4 Protocol instance has not been started.\r
944 @retval EFI_INVALID_PARAMETER This is NULL.\r
945 @retval EFI_NOT_FOUND When Token is not NULL, and the asynchronous DNS\r
946 operation was not found in the transmit queue. It\r
947 was either completed or was not issued by\r
948 HostNameToIp(), IpToHostName() or GeneralLookup().\r
99c048ef 949**/\r
950EFI_STATUS\r
951EFIAPI\r
952Dns4Cancel (\r
953 IN EFI_DNS4_PROTOCOL *This,\r
954 IN EFI_DNS4_COMPLETION_TOKEN *Token\r
955 );\r
956\r
957\r
958/**\r
0f4e123f 959 Retrieve mode data of this DNS instance.\r
99c048ef 960\r
0f4e123f 961 This function is used to retrieve DNS mode data for this DNS instance.\r
99c048ef 962\r
0f4e123f 963 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
f75a7f56 964 @param[out] DnsModeData Pointer to the caller-allocated storage for the\r
0f4e123f 965 EFI_DNS6_MODE_DATA data.\r
99c048ef 966\r
0f4e123f
JW
967 @retval EFI_SUCCESS The operation completed successfully.\r
968 @retval EFI_NOT_STARTED When DnsConfigData is queried, no configuration data\r
969 is available because this instance has not been\r
970 configured.\r
971 @retval EFI_INVALID_PARAMETER This is NULL or DnsModeData is NULL.\r
972 @retval EFI_OUT_OF_RESOURCE Failed to allocate needed resources.\r
99c048ef 973**/\r
974EFI_STATUS\r
975EFIAPI\r
976Dns6GetModeData (\r
977 IN EFI_DNS6_PROTOCOL *This,\r
978 OUT EFI_DNS6_MODE_DATA *DnsModeData\r
979 );\r
980\r
981/**\r
0f4e123f
JW
982 Configure this DNS instance.\r
983\r
984 The Configure() function is used to set and change the configuration data for this\r
985 EFI DNSv6 Protocol driver instance. Reset the DNS instance if DnsConfigData is NULL.\r
986\r
987 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
f75a7f56 988 @param[in] DnsConfigData Pointer to the configuration data structure. All associated\r
0f4e123f
JW
989 storage to be allocated and released by caller.\r
990\r
991 @retval EFI_SUCCESS The operation completed successfully.\r
81a46615 992 @retval EFI_INVALID_PARAMETER This is NULL.\r
0f4e123f
JW
993 The StationIp address provided in DnsConfigData is not zero and not a valid unicast.\r
994 DnsServerList is NULL while DnsServerList Count is not ZERO.\r
995 DnsServerList Count is ZERO while DnsServerList is not NULL.\r
996 @retval EFI_OUT_OF_RESOURCES The DNS instance data or required space could not be allocated.\r
997 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. The\r
998 EFI DNSv6 Protocol instance is not configured.\r
999 @retval EFI_UNSUPPORTED The designated protocol is not supported.\r
f75a7f56
LG
1000 @retval EFI_ALREADY_STARTED Second call to Configure() with DnsConfigData. To\r
1001 reconfigure the instance the caller must call Configure() with\r
0f4e123f 1002 NULL first to return driver to unconfigured state.\r
99c048ef 1003**/\r
1004EFI_STATUS\r
1005EFIAPI\r
1006Dns6Configure (\r
1007 IN EFI_DNS6_PROTOCOL *This,\r
1008 IN EFI_DNS6_CONFIG_DATA *DnsConfigData\r
1009 );\r
1010\r
1011/**\r
0f4e123f
JW
1012 Host name to host address translation.\r
1013\r
1014 The HostNameToIp () function is used to translate the host name to host IP address. A\r
1015 type AAAA query is used to get the one or more IPv6 addresses for this host.\r
1016\r
1017 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1018 @param[in] HostName Host name.\r
1019 @param[in] Token Point to the completion token to translate host name\r
1020 to host address.\r
1021\r
1022 @retval EFI_SUCCESS The operation completed successfully.\r
1023 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1024 This is NULL.\r
1025 Token is NULL.\r
1026 Token.Event is NULL.\r
1027 HostName is NULL or buffer contained unsupported characters.\r
1028 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1029 @retval EFI_ALREADY_STARTED This Token is being used in another DNS session.\r
1030 @retval EFI_NOT_STARTED This instance has not been started.\r
1031 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 1032**/\r
1033EFI_STATUS\r
1034EFIAPI\r
1035Dns6HostNameToIp (\r
1036 IN EFI_DNS6_PROTOCOL *This,\r
1037 IN CHAR16 *HostName,\r
1038 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
1039 );\r
1040\r
1041/**\r
0f4e123f
JW
1042 Host address to host name translation.\r
1043\r
1044 The IpToHostName () function is used to translate the host address to host name. A\r
1045 type PTR query is used to get the primary name of the host. Implementation can choose\r
1046 to support this function or not.\r
1047\r
1048 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1049 @param[in] IpAddress Ip Address.\r
1050 @param[in] Token Point to the completion token to translate host\r
1051 address to host name.\r
1052\r
1053 @retval EFI_SUCCESS The operation completed successfully.\r
1054 @retval EFI_UNSUPPORTED This function is not supported.\r
1055 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1056 This is NULL.\r
1057 Token is NULL.\r
1058 Token.Event is NULL.\r
1059 IpAddress is not valid IP address.\r
1060 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1061 @retval EFI_NOT_STARTED This instance has not been started.\r
1062 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 1063**/\r
1064EFI_STATUS\r
1065EFIAPI\r
1066Dns6IpToHostName (\r
1067 IN EFI_DNS6_PROTOCOL *This,\r
1068 IN EFI_IPv6_ADDRESS IpAddress,\r
1069 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
1070 );\r
1071\r
1072/**\r
0f4e123f
JW
1073 This function provides capability to retrieve arbitrary information from the DNS\r
1074 server.\r
1075\r
1076 This GeneralLookup() function retrieves arbitrary information from the DNS. The caller\r
1077 supplies a QNAME, QTYPE, and QCLASS, and all of the matching RRs are returned. All\r
1078 RR content (e.g., TTL) was returned. The caller need parse the returned RR to get\r
1079 required information. The function is optional. Implementation can choose to support\r
1080 it or not.\r
1081\r
1082 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1083 @param[in] QName Pointer to Query Name.\r
1084 @param[in] QType Query Type.\r
1085 @param[in] QClass Query Name.\r
1086 @param[in] Token Point to the completion token to retrieve arbitrary\r
1087 information.\r
1088\r
1089 @retval EFI_SUCCESS The operation completed successfully.\r
1090 @retval EFI_UNSUPPORTED This function is not supported. Or the requested\r
1091 QType is not supported\r
1092 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1093 This is NULL.\r
1094 Token is NULL.\r
1095 Token.Event is NULL.\r
1096 QName is NULL.\r
1097 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1098 @retval EFI_NOT_STARTED This instance has not been started.\r
1099 @retval EFI_OUT_OF_RESOURCES Failed to allocate needed resources.\r
99c048ef 1100**/\r
1101EFI_STATUS\r
1102EFIAPI\r
1103Dns6GeneralLookUp (\r
1104 IN EFI_DNS6_PROTOCOL *This,\r
1105 IN CHAR8 *QName,\r
f75a7f56 1106 IN UINT16 QType,\r
99c048ef 1107 IN UINT16 QClass,\r
1108 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
1109 );\r
1110\r
1111/**\r
0f4e123f
JW
1112 This function is to update the DNS Cache.\r
1113\r
1114 The UpdateDnsCache() function is used to add/delete/modify DNS cache entry. DNS cache\r
1115 can be normally dynamically updated after the DNS resolve succeeds. This function\r
1116 provided capability to manually add/delete/modify the DNS cache.\r
1117\r
1118 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1119 @param[in] DeleteFlag If FALSE, this function is to add one entry to the\r
81a46615 1120 DNS Cache. If TRUE, this function will delete\r
0f4e123f 1121 matching DNS Cache entry.\r
81a46615 1122 @param[in] Override If TRUE, the matching DNS cache entry will be\r
0f4e123f
JW
1123 overwritten with the supplied parameter. If FALSE,\r
1124 EFI_ACCESS_DENIED will be returned if the entry to\r
1125 be added is already existed.\r
1126 @param[in] DnsCacheEntry Pointer to DNS Cache entry.\r
1127\r
1128 @retval EFI_SUCCESS The operation completed successfully.\r
1129 @retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:\r
1130 This is NULL.\r
1131 DnsCacheEntry.HostName is NULL.\r
1132 DnsCacheEntry.IpAddress is NULL.\r
1133 DnsCacheEntry.Timeout is zero.\r
1134 @retval EFI_ACCESS_DENIED The DNS cache entry already exists and Override is\r
1135 not TRUE.\r
1136 @retval EFI_OUT_OF_RESOURCE Failed to allocate needed resources.\r
99c048ef 1137**/\r
1138EFI_STATUS\r
1139EFIAPI\r
1140Dns6UpdateDnsCache (\r
1141 IN EFI_DNS6_PROTOCOL *This,\r
1142 IN BOOLEAN DeleteFlag,\r
1143 IN BOOLEAN Override,\r
1144 IN EFI_DNS6_CACHE_ENTRY DnsCacheEntry\r
1145 );\r
1146\r
1147/**\r
0f4e123f
JW
1148 Polls for incoming data packets and processes outgoing data packets.\r
1149\r
1150 The Poll() function can be used by network drivers and applications to increase the\r
1151 rate that data packets are moved between the communications device and the transmit\r
1152 and receive queues.\r
1153\r
1154 In some systems, the periodic timer event in the managed network driver may not poll\r
1155 the underlying communications device fast enough to transmit and/or receive all data\r
1156 packets without missing incoming packets or dropping outgoing packets. Drivers and\r
1157 applications that are experiencing packet loss should try calling the Poll()\r
1158 function more often.\r
1159\r
1160 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1161\r
1162 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
1163 @retval EFI_NOT_STARTED This EFI DNS Protocol instance has not been started.\r
1164 @retval EFI_INVALID_PARAMETER This is NULL.\r
1165 @retval EFI_NO_MAPPING There is no source address is available for use.\r
1166 @retval EFI_DEVICE_ERROR An unexpected system or network error occurred.\r
1167 @retval EFI_TIMEOUT Data was dropped out of the transmit and/or receive\r
1168 queue. Consider increasing the polling rate.\r
99c048ef 1169**/\r
1170EFI_STATUS\r
1171EFIAPI\r
1172Dns6Poll (\r
1173 IN EFI_DNS6_PROTOCOL *This\r
1174 );\r
1175\r
1176/**\r
0f4e123f
JW
1177 Abort an asynchronous DNS operation, including translation between IP and Host, and\r
1178 general look up behavior.\r
1179\r
1180 The Cancel() function is used to abort a pending resolution request. After calling\r
1181 this function, Token.Status will be set to EFI_ABORTED and then Token.Event will be\r
1182 signaled. If the token is not in one of the queues, which usually means that the\r
1183 asynchronous operation has completed, this function will not signal the token and\r
1184 EFI_NOT_FOUND is returned.\r
1185\r
1186 @param[in] This Pointer to EFI_DNS6_PROTOCOL instance.\r
1187 @param[in] Token Pointer to a token that has been issued by\r
1188 EFI_DNS6_PROTOCOL.HostNameToIp (),\r
1189 EFI_DNS6_PROTOCOL.IpToHostName() or\r
1190 EFI_DNS6_PROTOCOL.GeneralLookup().\r
1191 If NULL, all pending tokens are aborted.\r
1192\r
1193 @retval EFI_SUCCESS Incoming or outgoing data was processed.\r
1194 @retval EFI_NOT_STARTED This EFI DNS6 Protocol instance has not been started.\r
1195 @retval EFI_INVALID_PARAMETER This is NULL.\r
1196 @retval EFI_NO_MAPPING There's no source address is available for use.\r
1197 @retval EFI_NOT_FOUND When Token is not NULL, and the asynchronous DNS\r
1198 operation was not found in the transmit queue. It\r
1199 was either completed or was not issued by\r
1200 HostNameToIp(), IpToHostName() or GeneralLookup().\r
99c048ef 1201**/\r
1202EFI_STATUS\r
1203EFIAPI\r
1204Dns6Cancel (\r
1205 IN EFI_DNS6_PROTOCOL *This,\r
1206 IN EFI_DNS6_COMPLETION_TOKEN *Token\r
1207 );\r
1208\r
1209#endif\r